urldefense.com
Category: Technology
Description of urldefense.com
urldefense.com appears to be a web domain used in connection with Proofpoint's email and threat-protection infrastructure. Based on the page title, screenshot, and on-page text, the site functions as part of a URL rewriting and inspection system that helps enterprise users evaluate links delivered through email before redirecting them to their intended destinations.
The page shown is informational rather than consumer-facing, explaining that links beginning with a Proofpoint-related URL are checked as part of a targeted attack protection workflow. The domain appears to be operated for cybersecurity and email security purposes, likely serving organizations that use Proofpoint services to reduce exposure to phishing and other email-borne threats.
Safety Assessment for urldefense.com
Scan results are broadly favorable at the time of this scan. Only 1 out of 91 security engines flagged the domain, while the malware scan reported no detected threats, and major threat-database checks did not indicate listings for malware, phishing, or unsafe content. The domain is also relatively well established, with an age of about eight years, and it has a strong traffic profile, which can be consistent with a widely used enterprise service.
The screenshot and page content also align with a legitimate security-related use case: the site presents itself as part of Proofpoint's URL defense system and explains its role in screening links from email messages. In context, the single-engine detection may represent a false positive or a context-specific classification rather than broad consensus across scanners.
Based on available scan data, no significant threats were detected at the time of this scan.
Technical Description
The domain uses a valid SSL/TLS certificate issued by Sectigo Limited, with expiration listed as 2026-11-10. It resolves to an AWS EC2 address in Ashburn, United States, and uses Amazon Route 53-style nameservers, which suggests mainstream cloud hosting and DNS infrastructure. The registrar is MarkMonitor, a provider commonly used by established organizations for domain management.
DNSSEC appears to be unsigned, which is not uncommon but means DNS responses do not benefit from that additional integrity layer. No malware-hosting indicators were reported by the provided malware scan, and blacklist checks were clean at the time of this scan.
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